Home / 35,430.86-48,900.14-20,896.64

Finding the Fourth Proportional to 35,430.86, 48,900.14 and 20,896.64

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Solution

The fourth proportional to 35,430.86, 48,900.14 and 20,896.64 is: 28,840.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,430.86 : 48,900.14 = 20,896.64 : x
  2. Step 2: Convert to fraction form
    35,430.86/48,900.14 = 20,896.64/x
  3. Step 3: Cross multiply
    35,430.86x = 48,900.14 × 20,896.64
  4. Step 4: Simplify right side
    35,430.86x = 1,021,848,517.05
  5. Step 5: Solve for x
    x = 1,021,848,517.05/35,430.86
  6. Step 6: Final answer
    x = 28,840.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.